Power supply unit



FIG. 1 is a perspective view of a power supply unit showing our newdesign;

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is an inverted front view thereof;

FIG. 6 is a side view thereof; and,

FIG. 7 is a side view thereof, opposite that shown in FIG. 6.

The broken lines shown represent unclaimed subject matter and form nopart of the claimed design.

CLAIM The ornamental design for a power supply unit, as shown anddescribed.